I'm developing an app that interfaces with an iPhone app via an API. I am building it on Google App Engine, using django-nonrel. I'm looking for a solution that allows me to build read-write APIs that perform CRUD operations.
I've tried django-tastypie, but it doesn't work with django-nonrel.
The biggest restriction of django-nonrel is no JOINs.
What is the best way to write those APIs? Should I just write the views from scratch, or is there some library that I could use?
Thanks in advance!
I got tastypie working, with two small code changes. It was pretty simple.
See here: http://eatdev.tumblr.com/post/12076483835/tastypie-on-django-nonrel-on-app-engine
Related
I have been using Flask for Building REST API on the development level. I want to create REST API at Production Level. So which Python web framework would be Best?
These frameworks I saw while searching:
CherryPy
Flask
Django
Pyramid
TurboGears
Pylons
Web2py
Falcon
Bottle
Etc.
Django has a big support for REST API. According to my own experience I'd advice Django.
See more here: https://www.django-rest-framework.org/
For a REST API, I would use FastAPI. It has a strong reputation.
I have used it for several projects, and I like it because it fairly easily lets you do the right thing without much work. For instance, it relies upon pedantic to ensure the proper data types for what you are sending/receiving.
I am new to cloudantdb and django. Is there any way to integrate cloudantdb with danjgo framework. Is it possible to connect cloudant with django?
As you may be aware, Cloudant is built on Apache CouchDB, so if you can't find references for Cloudant, it's usually worth also searching for CouchDB. I don't really use Django, but a quick search throws up the following references:
http://leok.me/2013/05/02/what-you-need-to-know-couchdb-django/
https://lethain.com/an-introduction-to-using-couchdb-with-django/
http://eflorenzano.com/blog/2008/11/10/using-couchdb-django/
https://djangopackages.org/grids/g/couchdb/
Most if not all solutions on the web are very outdated.
The solution used by IBM in a capstone project on Coursera was:
Use SQLite backend in your Django app
Create Cloud Functions for communicating with Cloudant
Create REST API definitions in your Django app that utilize the Cloud Functions to communicate with Cloudant
I don't know if it's the best solution, but it works. I do feel like SQLite is redundant at this point but without it, I couldn't get the app to work.
In my django application I have essentially joins ("__"). If I were to use Google App Engine, how would my app work in this instance? From what I've read, Bigtable doesn't allow this. Any advice on how to work with this?
Simple answer: it wouldn't.
You would presumably be using django-nonrel in any case. An extension to that, django-dbindexer, provides some support for emulating certain joins. But it's far from comprehensive. You generally need to architect your application in a different way to use the GAE datastore.
I would like to create an oauth (REST) API the same way Twitter or Foursquare does.
I found this website http://djangopackages.com/ which is really great and has several packages but I would like some opinions on which is the best package, etc...
I would like, for example, let people to allow permission to 3rd party apps to access their data (Using API Keys, etc...)
Thanks a lot!
Django is a wonderful web framework. It helpes you in many ways making rich web applications. It helps you starting in form handling and ending in templating.
However in your case if your intension is just to make an awesome API such as of Twitter or Foursquare, you have to ask yourself if you need all this help Django provides. For example, are you ever going to use any templates in the API or process a for submittions. The answer is probably not...
So if you need a very flexible framework to developer an API, I would highly recommend to take a look into Pyramid. It is very similar to Django, however does not have all this extra cludder which is not necessary for an API.
However if your application needs both a rich user interface and an API or you just want to use Django, like Ulusses suggested, then I think TastyPie is for you. It is a great library where you can have a running API in no time. I use it all the time and it is very flexible. ReadTheDocs uses tastypie.
Another API lib is piston. I haven't used it so can't judge if its better or worse then tastypie. Bitbucket however uses it.
You can check out https://github.com/toastdriven/django-tastypie or https://bitbucket.org/jespern/django-piston/wiki/Home.
You can achieve what you want with both, check out on the documentation the one that suits you best.
I use Django REST framework. It is awesome.
Piston is dead. Tastypie is awesone, but works with Django only. There are pros and cons with Django as well as Pyramid. If you need great ORM, sqlalchemy is only one, and there is no good example of using it with Django, so in this case you have Flask, Bottle or Pyramid. Django ORM is really not at that par.
If you choose Pyramid, you will have to write a lot of things, and the framework is just skinned boneless cat. You need to assemble and configure every block, seems frustrating to many including me.
How much of a pain is it to run a Django App on App Engine? Also, does the Datastore work as-is with Django?
I spent some time trying to answer the same question... it seems to me that the most difficult thing to transfer to GAE are django's models... in the sense that they require various modifications and rethinking, mainly because GAE's backend is not a standard relational DB, but google's BigTable. I found a nice intro to this here:
http://www.youtube.com/watch?v=rRCx9e38yr8
Anyways, it's worth downloading one of those 'patches' and have a go with it!
For me the best solution is the 'app-engine-patch'. I downloaded the sample project and it worked straightaway! (Mind that you need to have GAE's SDK installed separately) A killer-feature for me is the fact that the django-admin and many other classic django functionalities have been ported too!!!
http://code.google.com/p/app-engine-patch/
The documentation is still quite minimal in my opinion, but it's good enough to get you going. It'll help you to skim though the official GAE docs though!
Just Yesterday (depending on your time zone), Google released a new SDK for Python on Appengine that supports django 1.0 out of the box.
You need to use django-nonrel (source).
You will still find loads of issues:
Many2Many relations not supported
Fake joins increase number of queries
App Engine doesn't allow any python lib with socket or C dependencies (sentry, lxml...)
You can try to get early access to CloudSQL.
Otherwise you are not constraint to use App Engine, you can think about using:
Heroku
Gondor
Cheaper and more control with support requirement files like pip.
31.01.2012, Google released App Engine 1.6.2 that supports Django out-of-the box.
App Engine includes version 0.96 of Django out-of-the-box, but it is quite crippled.
App Engine Helper and app-engine-patch supposedly fix this problem to some degree, but I haven't tried either myself.
http://code.google.com/appengine/articles/appengine_helper_for_django.html
http://code.google.com/appengine/articles/app-engine-patch.html
The amount of pain depends on how much existing code you want to reuse. Unfortunately because of the Datastore does not support SQL, you often cannot just take any django-pluggable app and use it on your GAE project.
App-engine-patch http://code.google.com/p/app-engine-patch/ looks to be ahead of the other django helpers in bringing the standard applications (Sites, ContentTypes, Flatpages) over to GAE. I have used app-engine-patch on several gae projects, and once you understand how to port a django-sql model to a django-gae model and converting sql to datastore queries things can be done very quickly - but there is always a learning curve.
appengine-helper tries to bridge the Datastore gap by providing a model so you don't have to change your model superclasses, but I've found that you end up having to change ManyToMany relationships and any sql anyway, so the advantage ends up being minimal. ae-patch has a roadmap to try to provide an ae-datastore backend, but it probably won't happen for a while.
Google has now launched their Cloud SQL storage. That is actually MySQL 5.5 in the cloud. IMO that's a very nice way to migrate your Django app into the cloud. They have a free trial up to June 1, 2013.
If you need some tips how to set up your Django project for Appengine and Cloud SQL I've written a tutorial for that.